7=2w+5(w-7)

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Solution for 7=2w+5(w-7) equation:


Simplifying
7 = 2w + 5(w + -7)

Reorder the terms:
7 = 2w + 5(-7 + w)
7 = 2w + (-7 * 5 + w * 5)
7 = 2w + (-35 + 5w)

Reorder the terms:
7 = -35 + 2w + 5w

Combine like terms: 2w + 5w = 7w
7 = -35 + 7w

Solving
7 = -35 + 7w

Solving for variable 'w'.

Move all terms containing w to the left, all other terms to the right.

Add '-7w' to each side of the equation.
7 + -7w = -35 + 7w + -7w

Combine like terms: 7w + -7w = 0
7 + -7w = -35 + 0
7 + -7w = -35

Add '-7' to each side of the equation.
7 + -7 + -7w = -35 + -7

Combine like terms: 7 + -7 = 0
0 + -7w = -35 + -7
-7w = -35 + -7

Combine like terms: -35 + -7 = -42
-7w = -42

Divide each side by '-7'.
w = 6

Simplifying
w = 6

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